Let the normal speed = x mph
The way to his grandmothers they drove 2x miles
Return trip was 2.25(x-5)
Set those equal and solve for x:
2x = 2.25(x-5)
Simplify:
2x = 2.25x -11.25
Subtract 2.25x from both sides:
-0.25x = -11.25
Divide both sides by-0.25:
X = 45
The usual speed is 45 mph.
So now 2 hours at 45 mph = 90 miles to his grandmothers house
Answer:
90 miles
Step-by-step explanation:
We did this in class when we were going over the hw and decided to help. Sorry if I'm too late.
Saturday Sunday
Minutes
32
Miles
3
4
I
Please help me I really need help right now
Answer:
3 5/12
Step-by-step explanation:
3 4/12+(-2 3/12)+1 10/12=3 5/12. 12 is the least common denominator
Christian conducted a survey to find the favorite hobby of her classmates from 4 choices. He surveyed the same number of girls as boys. The table
shows his results
Name Number of Boys Number of Girls
Cooking
5
6
Drawing
4
5
Reading
10
10
Hiking
6
4
Which of the following statements about the data is true?
More girls than boys prefer hiking.
O Fewer students prefer reading than prefer cooking,
Twice as many sutdents prefer reading than prefer hiking,
The hobby that the most boys prefer is different than the hobby that most girls prefer
Answer:
Twice as many students prefer reading than prefer hiking,
Step-by-step explanation:
Combined reading is 20 and hiking is 10
Please give me the brainliest
(a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their watermelon crop (in dollars). What is the margin of error (in dollars)
Answer:
The margin of error (E) [tex]=0.49[/tex]
Step-by-step explanation:
Given,
mean [tex]\bar{x}=6.88[/tex]
standard deviation [tex]\sigma=1.90[/tex]
sample size [tex]n=41[/tex]
[tex]90\% \quad \text{confidence interval}[/tex]
Critical value [tex]=\frac{z_\alpha}{2}\quad \quad\quad[\because\;\alpha=1-\text{confidence interval}][/tex]
[tex]=1-0.90[/tex]
[tex]\Rightarrow \alpha=0.1[/tex]
Critical value [tex]=\frac{z_{0.1}}{2}[/tex]
[tex]=z_{0.05}[/tex]
[tex]=1.645[/tex]
The margin of error (E) [tex]=\frac{z_\alpha}{2} \times\frac{\sigma}{\sqrt{n} }[/tex]
[tex]=1.645\times\frac{1.90}{\sqrt{41} }[/tex]
[tex]=0.49[/tex]
Hence, The margin of error (E) [tex]=0.49[/tex]
Complete question is attached in below.
Make 500$ !!!!
9th grade homework comment if your down
Answer:
What? im totally confused
Step-by-step explanation:
Answer:
Im comfusesd to
Step-by-step explanation:
The triangles are similar.
What is the value of x?
Enter your answer in the box.
x =
Answer:
x=16
Step-by-step explanation:
Process in photo.......
What does "solution" mean?
What does it mean for a point to be a solution to a linear
equation?
For example, if I say, " (2,5) is a solution to the
equation y = 2x + 3," how could you check my claim?
Answer:
A solution to a linear equation means that the ordered pair is a point that lies on that line.
If someone were to say (2,5) is a solution to the equation y= 2x+3, you could check them by plugging in 2 where the variable "x" and seeing if y =5.
In this case,
y= 2(2)+3
y=7
(2,5) is not a solution.
The circle below is centered at the point (4, 3) and has a radius of length 5.
What is its equation?
Answer:
[tex](x-4)^{2} + (y-3)^{2} = 5^{2}[/tex]
Step-by-step explanation:
Equation is circle is given as
[tex](x-x_1)^{2} + (y-y_1)^{2} =r^{2}[/tex]
Here [tex](x_1. y_1)=(4, 3)[/tex] and [tex]r=5[/tex]
Equation of circle with center at (4, 3) and radius 5 can be written as
[tex](x-4)^{2} + (y-3)^{2} = 5^{2}[/tex]
I need help with this question!
9514 1404 393
Answer:
x = 87x = 5611x -5 = 83Step-by-step explanation:
Consecutive interior angles have a sum of 180°, so ...
(41 +7x) +(11x -5) = 180
18x +36 = 180 . . . . . . . . . simplify
x + 2 = 10 . . . . . . . . . . . . divide by 18
x = 8
The angle 7x is then ...
7x = 7(8) = 56 . . . . degrees
The angle 11x -5 is ...
11x -5 = 11(8) -5 = 83 . . . . degrees
__
Check
41 + 56 + 83 = 97 +83 = 180 . . . . as required
Answer:
According to the above problem
[tex](7x) + (11x - 5) + 41 = 180 \\ 18x = 180 + 5 - 41 \\ 18x = 144 \\ \boxed{x = 8}[/tex]
Therefore, the angles are 41°, 56° and 83°.
14 is what percent of 140
Answer:
10
Step-by-step explanation:
Answer:
10%
Step-by-step explanation:
140 100
14 x
-Cross-multiply
[tex]\frac{100*14}{140}[/tex]=10
The shop stocks 3 times as many Coca-Colas as Coke Zeros. There are a total of 36 on the shelf. How many of each type of drink are there?
Please explain thank youu!
Answer
There are 12 coke zeros and 24 coca-colas
Step-by-step explanation:
If there are 36 drinks in total and the shop stocks 3 times as many cokes than coke zeros you would have to divide 36 by 3 and that gets you 12 coke zeros and to check your work you can do 12 times 3 which would be 3 times the cokes which makes a total of 36 and 36 - 12 = 24 cokes.
I need help please I will mark you brainliest
Answer:
A
Step-by-step explanation:
10^-3 will make it negative and then 10^3 because it is less then 10^7
Answer:
A
Step-by-step explanation:
Because all three of these are 7.68x10^a power the determining factor in which one is the greatest is based on which one has the largest exponent -3<3<7 so this is the order from least to greatest.
what is the value of the ratio 5 to 4
Answer:
5/9 or 4/9
Step-by-step explanation:
Answer:
1.25
Step-by-step explanation:
the raio 5 to 4
is 5 over 4
which means 5 divided by 4
1) The perimeter of a square is 16 inches. What is the length of each side?
4 inches
8 inches
64 inches
32 inches
Done >
In the equation z + 4 = 44, what is the next step in the equation solving sequence?
Move the constant to the right side of the equation.
Isolate the variable through inverse operations.
Combine like terms.
Identify and move the coefficient or variable.
Answer:
Isolate the variable through inverse operations.
Step-by-step explanation:
Subtract 4 from both sides:
z + 4 - 4 = 44 - 4
z = 40
using 250mililitres measuring cylinder, how many 250mililitres will give you 4litres
Answer:
sixteen 250 millilitres
Step-by-step explanation:
250 millimetres = 1/4 litre
4 litres = 16 one-fourth litres
PLZ MARK AS BRAINLIEST
(220+127)h=30+9 is what? pls help ik but rlly HELP....
Answer:
347
Step-by-step explanation:
I don't know how you want me to answer this, so I just answered with the exact value.
Answer:
the answer would be h= 39/347 (a fraction)
Please help me answer this
Explain you’re answer
Will give braisnlt
Can somebody plz help me plz!!! ASAP
20 points
Answer:
4) A
Step-by-step explanation:
Choose the correct problem for the fraction
7/8
A.7divide10
B.7multiply8
C.8divide7
D.7divide8
Answer:
d
Step-by-step explanation:
dont choose mine just yet but i think it is correct
The correct problem for the fraction 7/8 is 7 divided by 8.
Option C is the correct answer.
What is a fraction?A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.
Example: 1/2, 1/3 is a fraction.
We have,
7/8
This is 7 divided by 8.
Thus,
7 divided by 8 is a fraction of 7/8.
Learn more about fractions here:
https://brainly.com/question/24370499
#SPJ2
How to find the scale factor of two triangles using the sides?
Answer:
You can find the scale factor of two triangles by using the ratio of two corresponding sides, so if you begin with smaller figure, your scale factor will be less than one and if you begin with larger figure, your scale factor will be bigger than one.
Step-by-step explanation:
Missy is a pitcher on her softball team. She says that she can feel the smallest difference in
softball weights. The lightest softball weighs 177 grams. Her lucky softball weighs 196 grams.
How much heavier is Missy's lucky softball than the lightest softball?
Answer:
19 Grams
Step-by-step explanation:
196-177
Nngdyjjgdeujjjhhh yffggyhvd of gfuff
Answer:
8x3 to the 6th degree minus 4th5 odd one under.
Step-by-step explanation:
2. The cost of a home entertainment center is $4700. We can finance this by paying $300 down and
$388.67 per month for 12 months.
a. Determine the amount financed.
b. Determine the total installment price.
c. Determine the finance charge.
Answer:
well. 372.
You don't have to buy a house. It doesn't really matter tho
You can live in an apartment or even hotel/motel. Enjoy
Step-by-step explanation:
5TH GRADE LEVEL QUESTION. PLEASE LOOK AT PHOTO AND ANSWER GIVING BRAINLIEST
Answer:
C.
Step-by-step explanation:
The equation that can be used to determine r is r = 3/.5 (1/2)
Hope this helps :)
PLEASE HELPPP You can multiply -2.2 by 6.2 to find the total variation in water level. What decimal represents the total variation in water level that Ericka observed?
Answer:
the answer is -13.64
Step-by-step explanation:
that's the answer
What is y=-6x-8 in standard form
Answer:
Standard Form y=-6x-38. y=−6x−38 y = - 6 x - 38. The standard form of a linear equation is Ax+By=C A x + B y = C .
Step-by-step explanation:
Find the value of each expression.
-22+5
Answer:
-17
Step-by-step explanation:
Factor out the negative sign
Keep the sign of the number with the larger absolute value and subtract the smaller absolute value from the larger.
-(22 - 5)
Subtract
-(22 - 5) = - 17
Find the area of the composite figure.
Please help me!!
Answer:
1,824 sq inches
Step-by-step explanation:
area of rectangle: 48 x 32 = 1536
area of triangle: (48 x 12) / 2 = 288
Please answer this correctly without making mistakes
Answer:
16
Step-by-step explanation:
The distance is given by
d = sqrt( (x2-x1) ^2 + ( y2-y1) ^2)
Since the x values are the same
d = sqrt( ( y2-y1) ^2)
d = sqrt( (( -6 - 10)^2))
d = sqrt((-16) ^2)
d = 16
We can also just find the number of squares between the points since the x value is the same.
10 - -6
10+6
16
Answer:
16
Step-by-step explanation:
10 - -6 = 10 + 6 = 16
